Drill-operating device



(No Model.)

G. H. SUMMERS,..A. J.-KINGS '8: L. Q. HARDESTY.- 'DRILL OPERATINGDEVICE.

No. 473,201. PatentedvApr. 19, 189 2.

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NITED STATES ATENT 'OFFICE.

GEORGE H. SUMMERS, ANDREIV J. KINGS, AND LORIN Q. HARDESTY, OF

MITCHELL, SOUTH DAKOTA.

DRILL-OPERATING DEVICE.

SPECIFICATION forming part of Letters Patent No. 473,201, dated April19, 1892.

Application filed June 30,1891- Serial No. 398,049. (No model.)

To all whom itmay concern:

Be it known that we, GEORGE H. SUMMERS, ANDREW J. KINGS, and LORIN Q.HARDESTY, citizens of the United States, residing at Mitchell, in thecounty of Davison and State of South Dakota, have invented a new andusefulDrill- Operating Device, of which the following is aspecification.

This invention relates to a drillelevating and releasing device for usein connection with well-boring and pile-driving machines, and commonlycalled spudders, the objects in view being to provide a cheap and simplemechanism adapted to be operated by the drill mechanism and to elevateand release the drill-rod, so as to perform its function withoutsubjecting either itself or the drill-machine to sudden strains, twists,&c., as caused by the sudden checking or movements of the rod. I

Other objects and advantages of the invention will appear in thefollowing description; and the invention consists in certain features ofconstruction hereinafter specified, and particularly pointed out in theclaim.

Referring to the drawings, Figure 1 is an elevation of a spudderattachmentconstructed in accordance with our invention. Fig. 2 is an endelevation. Fig. 3 is a view similar to Fig, 1, the attachment beingdrawn back and in the act of elevating the drill-rod.

Like numerals of reference indicate like parts in all the figures oftherdrawings.

In a suitable frame 1, provided with a transverse shaft 2, there ismounted upon the shaft a drum 3, around which the drill-rope 4 isadapted to pass, or the shaft 2 may serve as the drum.

5 designates a lever, the lower end of which is bifurcated, as at 6,which bifurcations are diverged to loosely embrace or straddle the drum3, and terminate in eyes 7, which loosely receive the shaft 2. The lever5 is of bellcrank shape, and at its upper end is provided with a lateralbranch 8, also bifurcated, and receiving the shaft 9 of a pulley 10, theannular groove of which is quite deep. Immediately above its bifurcationthe lever 5 is provided with a series of perforations 11.

12 designates a pitman or other connecting 5o device, such as a rope,&c., which in this instance is bolted securely at one end to a clevisl3, bifurcated and embracing the lever 5, and pivotally connectedthereto by a bolt 14, removably passed through the lever and the clevisand adapted to adj ustably connect the latter upon the former by beinginserted into any one of the adjusting-holes 11. The opposite end of thepitman may be connected to any driving portion of amining-machinesuchas, for instance, an eccentric and other devices.

In operation the rope is wound upon the drum and passes up in rear ofthe pulley 10 and thence over an overhead pulley 16,1ocated above thewell, and down to the drill-rod. The drilling-machine being set inmotion through the medium of the pitman 12, at each stroke of themachine draws the lever 5 back to the position shown in Fig. 3, andelevates the drill-rod by the withdrawl of the rope around the pulley10. The elevation of the drill-rod and the subsequent falling of thesame by its own weight draws off a sufficient quantity of rope from thedrum, and as the movement of the drillin g-machin econtinues, the leveris thrown back to its first position and subsequently returns, againelevates the drill-rod, permitting it to fall. In this manner thedrill-rod is successfully operated, and no jarring whatever is caused bythe fall of the drill, and consequently neither the attachment nor themachine is subject to the incessant and severe strain that wouldotherwise take place if the attachment were not employed.

The device of course may be employed in connection with any kind ofdrill-rod, either solid or hollow, and if the latter, suitable hydraulicmechanism for removingthe cuttings will be employed.

Our invention can be used to ad vantage on pile-driving machines aswell.

Having described our invention, what we claim is- In an attachment ofthe class described, the combination, with the support, the transverseshaft, and the drum mounted thereon, of the lever 5, bifurcated at itslower end, as at 6, to

embrace the drum and having shaft-receiving our own we have heretoaffixed oursignatures eyes 7 and at its upper end bifurcated, the inpresence of two Witnesses.

Shaft 9, mounted therein, the pulley 10, mount- GEORGE II. SUMMERS. edupon the shaft, the elevis 13, the bolt 14, ANDREW J. KINGS.

5 and the drill-rope Wound upon the drum and LORIN Q. HARDESTY.

passed over the pulley 10, substantially as Witnesses specified. A. X.REGAN,

In testimony that We claim the foregoing as J. M. ADAMS.

